From a64ac4575a235fa7efc44b4f56a34c20e5634d9c Mon Sep 17 00:00:00 2001
From: bmeurer <bmeurer@chromium.org>
Date: Fri, 2 Jan 2015 00:17:50 -0800
Subject: [PATCH] Fix %NeverOptimizeFunction() intrinsic.

Set a valid reason for disabling optimization when using
%NeverOptimizeFunction.

TEST=mjsunit/compiler/regress-445732
BUG=chromium:445732
LOG=y
TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/832003002

Cr-Commit-Position: refs/heads/master@{#25949}
---
 src/runtime/runtime-test.cc             |  1 +
 test/mjsunit/compiler/regress-445732.js | 11 +++++++++++
 2 files changed, 12 insertions(+)
 create mode 100644 test/mjsunit/compiler/regress-445732.js

diff --git a/src/runtime/runtime-test.cc b/src/runtime/runtime-test.cc
index 9faa2dc..b4b90e2 100644
--- a/src/runtime/runtime-test.cc
+++ b/src/runtime/runtime-test.cc
@@ -94,6 +94,7 @@ RUNTIME_FUNCTION(Runtime_NeverOptimizeFunction) {
   HandleScope scope(isolate);
   DCHECK(args.length() == 1);
   CONVERT_ARG_CHECKED(JSFunction, function, 0);
+  function->shared()->set_disable_optimization_reason(kOptimizationDisabled);
   function->shared()->set_optimization_disabled(true);
   return isolate->heap()->undefined_value();
 }
diff --git a/test/mjsunit/compiler/regress-445732.js b/test/mjsunit/compiler/regress-445732.js
new file mode 100644
index 0000000..199a29a
--- /dev/null
+++ b/test/mjsunit/compiler/regress-445732.js
@@ -0,0 +1,11 @@
+// Copyright 2014 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Flags: --allow-natives-syntax --turbo-asm
+
+"use asm";
+
+%NeverOptimizeFunction(f);
+function f() { }
+f();
-- 
2.7.4